This paper presents a wave-based numerical scheme based on a spectral element method,
coupled with an implicit-explicit Runge-Kutta time step** method, for simulating room …

The sound environment in urban areas is complex, as caused by many sources of sound
and influenced by a variety of acoustic propagation effects. In order to combat noise and …

Applicability of wave-based acoustics simulation methods in the time domain has increased
markedly for performing room-acoustics simulation. They can incorporate sound absorber …

Recent wave-based room acoustic simulations in the time domain can incorporate
frequency-dependent absorbing boundary conditions (BCs), by which time responses …

Abstract The Finite Element Method (FEM) is known to behave overly-stiff, which leads to an
imbalance between the mass and stiffness matrices within discretized systems. In this work …

We present a massively parallel and scalable nodal discontinuous Galerkin finite element
method (DGFEM) solver for the time-domain linearized acoustic wave equations. The solver …

Plane-wave-enriched finite element method (FEM), an efficient wave-based prediction
method, uses shape functions incorporating a set of plane waves propagating in various …

Permeable membranes (PMs), which are air-permeable thin woven fabrics or non-woven
fabrics, are attractive sound-absorbing materials used to control acoustics in buildings …

In room acoustic simulations the surface materials are commonly represented with energy
parameters, such as the absorption and scattering coefficients, which do not carry phase …

Predicting room acoustics using wave-based numerical methods has attracted great
attention in recent years. Nevertheless, wave-based predictions are generally …